In this surveillance-heavy episode [Please use that link; we're still having trouble with the embed code], Professors Chesney and Vladeck dig into a raft of news about foreign-intelligence collection authorities. They open with an overview of how Section 702 collection authority works, and then unpack the recent news that NSA is dropping the “about” collection component of Upstream collection under 702.
Latest in telephone metadata
Robert Chesney, Steve Vladeck Thu, May 4, 2017, 10:48 AM
What Is the "Right" Number of Call Detail Records for 42 Targets under FISA's Business Records Authority?
Robert Chesney Wed, May 3, 2017, 5:45 PM
ODNI's transparency report contains loads of interesting information (see, e.g., Adam's post here on FBI queries of the fruits of 702 collection).